Rated power measured according to DIN 45500 up to 1% distortion factor in 13,5V

Ground Zero GZNA 2800XII

1 × 361 watts, channel 1 at 4 Ohm
2 × 342 watts, channel 1 + 2 at 4 Ohm
Current consumption 70,4A
efficiency 72%

1 × 1183 watts, channel 1 + 2 bridged at 4 Ohm with 13,4V supply voltage
Current consumption 134A
efficiency 65,9%

1 × 1800 watts, channel 1 + 2 bridged at 2 Ohm with 13,3V supply voltage
Current consumption 221A
efficiency 61,2%

1800 watts total power